Edukacja

The problematic aspects of energy efficiency \'21

Maciej Zajkowski, Zbigniew Sołjan (Editors)

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The problematic aspects of energy efficiency \'22

Maciej Zajkowski, Zbigniew Sołjan (red.)

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Theoretical and practical aspects of business activity. Business planing

Danuta Szpilko, Joanna Szydło, Ewa Glińska, Urszula...

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